I created this cute little roly-poly snowman for my desktop decoration.
This is the AMS version. Similarly, the snowman was divided into two main bodies for the purpose of filling the lower body with heavier materials to make it a tumbler toy. Play dough was used as the main infill material. Extra heavier infill like a pebble, river rock, metal pieces(nuts), coins, etc. are recommended to use together with the Play-Doh to lower the center of gravity of the snowman so that it can stand more stable on its own. I'd suggest printing out an extra hat brim as a base for desktop decoration (stl file can be found in the non-AMS version).
For the non-AMS version, please refer to the following link for separate printing.